Question

copper(I) oxide and copper(oi) oxides are Formed from same elements copper and oxygen.but why they are different from each other?
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Answer 1

Explanation:

Copper, which is a d block element, is named as cuprous or cupric based on the electronic configuration. The main difference between cuprous and cupric is that cuprous is copper +1 cation whereas cupric is copper +2 cation. When copper is reacted with oxygen, two stable compounds Cu2O and CuO form.

Copper Oxide is the inorganic compound with the formula CuO (Figure 1) also known as ‘cupric oxide’. In this form, Cu is in the form of Cu+2 and the electron configuration of the Cu changes from [Ar]3d104s1 to [Ar]3d94s0

Cuprous Oxide is the other stable compound of Copper with formula Cu2O. In this form, Cu is in the form of Cu+1. Its electron configuration changes from [Ar]3d104s1 to [Ar]3d104s0 so it is more stable compared to copper(II) oxide